Use all armor as carrion, power+vitality+conddmg, its very useful as PvP either, simple swap some traits : minion master for staff master, flesh of the master for necromantic corruption, spiteful removal for spiteful spirit,

Skills: keep all least shadow fiend, i use well of corruption instead - against those sons of a bi... full of boons. or well of power as suites you better , i like more the first does dmg and less CD.

Your focus in PvP its to chill at all costs the targets, chill by itself destroy a lot of builds and combos, as it built +66% on cooldowns and movement its crucial against every foe, it makes you control the distance, then your minions does dmg as trucks and 10% chance to take off boons and 100% crippled with every hit, larger marks makes almost every spot trigger for condition and dmg, swap to scepter+dagger as long you have cd on staff to keep it high on conditions and dmg and 1 more chill, use the 4th skill careful to blind your target against a crit skill, remember that skill will take 66% long to come back...

Try it its really incredible powerful , and you can easily take down some champions as long as you keep MoB out near your minions and rotate shadow fiend blind with yours as champion foe uses a crit skill.